期刊
PROGRESS IN ORGANIC COATINGS
卷 122, 期 -, 页码 270-279出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2018.06.004
关键词
Acrylic ester grafting epoxy; Polyaniline; Composite; Antistatic property; Anticorrosion mechanism
资金
- University Science Foundation of Jiangsu province [14KJA430006]
- Combination of innovative funding through the Priority Academic Program Development of Jiangsu Higher Education Institutions [SBY2014020171]
- Propulsion Engineering Program of Industrialization of Research Findings of Jiangsu Higher Education Institutions [JH10-42]
In this paper, acrylic ester grafting epoxy (A-g-EP) with -COOH functional groups was firstly designed and prepared. Then the PANI-A-g-EP composite was obtained through oxidation polymerization of aniline on A-g-EP macromolecular chains. PANI nanoparticles in the PANI-A-g-EP composite were dispersed uniformly due to the strong interactions between macromolecular carboxyl groups and PANI. The composite is characterized by FTIR, UV-vis and cyclic voltammetry (CV). The effect of PANI content on the glass transition temperature (T-g) and the thermal decomposition temperature (T-d) were studied. PANI-A-g-EP composite coating was fabricated by the solution casting. The results of surface resistance, anticorrosion performances of the composite coating demonstrate that the good anticorrosion property of A-g-EP coating is caused by the good wet adhesion. The anticorrosion mechanism of PANI in the PANI-A-g-EP composite coating is revealed to be the electron transmission and passivation catalysis.
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